Shutter-operator



UNI-TED STATES PATENT GFFICE. A

EDVARD MATTOCKS, OF LYNDON, VERMONT.

SHUTTER-OPERATOR.

Specification of Letters Patent No. 27,372, dated March G, 1860.

To all whom it may concern:

Be it known that I, EDWARD MA'rTooKs, of Lyndon, in the county of Caledonia and State of Vermont, have invented an Improved Mode of Opening and Closing lVindow-Blinds, &c.; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings, of which- Figure l, denotes a front elevation of a window frame having a blind attached thereto and provided with my invention. Fig. 2, is a side view of the pinion shaft and pinion. Fig. 3, is a top view of the sectoral gear. Fig. 4, is a perspective view of the bent U shaped lever, which is attached to the inner end of the bar carrying the double catch. Fig. 5, is a top view of the double catch bar and its catches. Fig. 6, is an inside view of the window frame.

The nature of my invention consists in a peculiar combination and arrangement' of mechanism for either opening or closing a window blind or shutter, as well as for latching and unlatching the same from the inside without the necessity of raising the window sash, such being effected by simply rotating the pinion shaft, either in one direction or the other as circumstances may require.

The object of my invention is to supply a desideratum which has long existed. It is well known that it is often very inconvenient, if not impossible, to raise a window sash in order to either open or close its blind, especially during stormy or cold weather, the sash being not unfrequently frozen down during the icy season. By my improvement the sash does not require to be raised at any season of the year for the purpose of either opening or closing the blind, or for unlatching or latching the same.

In the drawings, A, renotes the window frame, and B, a blind attached thereto in the usual way. To the underside of the blind, a long, rigid lever, C, is attached in such manner as to be capable of a slight vertical movement, such bar carrying upon its outer end, a double catch, a., a, disposed transversely thereof, as shown in the drawings, such double catch being for the purpose of fastening the blind when such is either closed or opened, as occasion may require. On the inner end of the said bar, C,

and extending transversely thereof, a lever, U, is firmly attached, the same being bent upward around each side of the blind, and having the end of each of its arms so disposed with respect to the sectoral gear, E, as to be operated by the same motor that actuates the said gear. The said gear, E, is of the form as shown in Fig. 3, and is applied to the blind in the position as shown in Fig. 1.

F, is a shaft which has a button or milled head, o, on its inner end, while to its outer end a pinion, G, is secured, the said pinion being placed vertically and so as to have its teeth not only engage with the teeth of the sectoral gear, but with the ends of the said U lever so as to elevate or depress the outer end of the said catch bar, C, as occasion may require. The said bar, C, is so suspended upon the underside of the blind, by means of an eye or staple which incloses it, that its outer end (or part which carries the double Catch) shall be the heavier, so that when the pinion, Gr, is not acting upon either end of the lever U, such outer end shall be maintained in its lowest position.

Having thus described the construction of my invention, I will now describe its operation. If we suppose the blind to be fastened or secured in the position as shown in Fig. 6, and we desire to unlatch the same, to open and fasten it back, all we have to do is simply to take hold of the button, or grasp it between the thumb and finger, and rotate it (or the shaft, F,) from right to left; the pinion, as soon as it begins to revolve, ceases to act on the ends of the lever, U, and the catch by its force of gravity falls, and is released from its connection with the eye or staple with which it was engaged; the teeth of the pinion next acting upon the sectoral gear, attached to the blind, causes it to be revolved until it has been brought in contact with the side of the building-one of the teeth of the pinion then striking on the outer end of the arm of the said lever U, depresses such arm, and of course raises the outer end of the lever, C, and latches the blind-for unlatching, closing and latching the blind when open,-we have only to rotate the shaft, F, in the opposite direction or from left to right, and the same is readily accomplished.

From the above it will be seen that my be not only either opened or closed, but 10 latohed or unlatohed in manner as set forth.

In testimony whereof I have hereunto set my Signature this 25th day of July A. D.

EDWARD MATTOGKS. Witnesses R. E. SMITH, J. A. DARLING. 

